Avian Influenza | Merck Veterinary Manual |
Most AI viruses (subtypes H1–H16) are low-pathogenicity avian influenza (LPAI) viruses. Some of the H5 and H7 AI viruses are HPAI viruses and highly lethal for chickens, turkeys, and related gallinaceous domestic poultry. Learn more: mrkmnls.co/3hoslOP.